Whitepaper: HMG’s PSN Compliance Regime

Since April 2014, the Government has been making fundamental changes to its Information Assurance policies.

This has included the introduction of a new Government Security Classification (GSC) Policy, which replaces the old six classifications with three tiers:
OFFICIAL, SECRET and TOP SECRET.

This white paper discusses the requirements and controls which the Public Services Network (PSN) team has produced to reflect that the PSN is a single network designed to carry OFFICIAL traffic for the public sector.